Typewriting machine



Patented Aug. 16, 1927. l

UNITED STATES PATENT orrlce.

ALFRED F. KUROWSKI, 01E BROOKLYIN, NEW YORK, ASSIGNOR TO UNDERWOOD TYPE- WRITER COMPANY, OF NEW YORK,I\T. Y., A CORPORATION OF DELAWARE.

TYPEWRITING MAoHrNE'.

Application filed September 24, 1 925. Serial in. 58,275.

This invention relates to attachments for typewriting machines, and has particular reference to means whereby labels or other relatively small work-pieces. may be removably mounted on a revoluble platen.

One object of the present invention is to provide a work-holder for labels, cards or the like, which maybe detachably mounted on a platen, and to which the worksheet may be readily applied.

Another object is to provide such a device with a work-holder or clamp movable toward or away from the platen-surface, and having means to hold the work-holder in either selected position.

According to the present invention, the work-holder includes a body-portion formed from resilient sheet-material and suitably curved tosnap over and embrace the platen, saidbody-portion preferably having a circumferential length equal to more than half of the circumference of the platen. The

body-portion carries .a work-holding member which is relatively movable and which is preferably normally spaced from the platen-surface The work-holding member has a work-engaging edge disposed parallel to the platen-surface, and carries camsurfacewhich is'engaged by a pivoted lever to lock the samejin worlpengaging position. A modification of the invention is also disclosed herein in which the work-holding member is formed from a separate piece of material and is slidable in a direction transverse to the platen-axis. In this second form of the invention, the work-holding member normally tends to press inwardly towards the platen-surface, and it may be moved out of such engaging position by sliding it upon the body-portion, by which movement it is actuated to a spaced relation from the platen-surface.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a transverse sectional view through my improved work-holder as applied to a platen in position for receiving a work-sheet. I I

Figure 2 is a similar view showing the work-sheet held in position for typing.

Figure 8 is a top plan View.

Figure 4 is a fragmentary detail perspective view of the work-holding locking means. i

Figure 7 is a top plan View of the modification.

Referring particularly to Figures 1, 2, 3 l

and a, my improved worlnholder includes a body-portion 10 formed of resilient sheetmaterial and curved to embrace a platen 11 of a typewriting machine. A work-holding member 12 is carried by the body-portion 10, and spaced therefrom by a substantially U-shaped slot 13. i holding member .12 may be formed integrally with the body-portion 10, but, of course, if ,desirable, these members may be formed. of separate pieces of material, secured together in any suitable manner. cam-surfacela on the work-holding member 12 lies in the path of movement of a lever 15, which is pivoted at 16 to the body-portion 1Q. As: the lever isoperated about its pivot 16 it'engages the cam-surface 1 1, pressing the work-holding member 12 against the surface of the platen 11. The work-holdmg member 12 may be provided with a plu ralityof apertures'having aligned straight edges 17,,which serves as gages for accurate- 1y positioning the work-sheet 18 in proper longitudinal relationship to the platen. A recess or :lepression 19 in the body-portion 10 provides clearance underthe end of the lever 15, as best shown in Figure 3, where by the same may be readily gripped by the fingers of the operator.

In use the device is snapped over the plat en 11 and preferably positioned as shown in Figure 1, with the work-holder 12 spaced from the surface of the platen, in which position a label or worlr-sheet 18 may have its upper edge positioned beneath the workholder 12, and aligned with the straight edges 17. The lever 15.is then operated to engage the cam surface 14 and securely grip the work-sheet so that it may be positioned for typing. v

I In Figures 5, 6 and 7 is illustrated a modified form ofthe invention wherein a body-portion 2O embraces the platen 11, and carries a w rr-ho'lderQl, which is mounted for transverse sliding movement in guides 22 and 23 on the body-portion. An extension 24, of the work-holding member 21 As here shown, the workslides upon the body-portion 20, and is provided with a. roughened surface 25, by which it may be readily engaged by the operators finger. In this form of the invention, the work-holding member 21 normally tends to press inwardly against the surface. of the platen l1, and it may be moved out of such I engagement by sliding the same rearwardly in the direction of the arrow in Figure 7, until it rides over the edge 26 of the bodyportion 20. The work-sheet 18 maybe ac-. curately positioned by abutment of its upper edge with the gaging edges 27 of bodyportion 20 as best shown in Figure 7, whereby lines of typin imprinted on the worl: sheet will be parallel to the edge thereof.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. A. work-piece-holder for a typewriting machine having a removable platen, said holder including a resilient body-portion clasping said platen, a workpiece-gripper extending from said body-portion and normally disposed a short distance from said platen for easy insertion of a work-piece therebetween, a projection on said gripper, and a finger-piece movable on said bodyportion for engaging said projection and pressing said gripper, against said workpiece and platen.

2. A work-piece-holder for a typewritmg machine having a revoluble platen, said holderincluding a resilient body-portion clasping said platen, an integral work-piecegripper extending forward from the front end of said body-portion and being separated from the latter by a slot, said gripper being normally disposed a short distance from the platen to permit the easy insertion of a work-sheet therebetween, a work-piecegage on said gripper, and means movably mounted on said body-portion for pressing said ripper against said work-piece and said platen.

3. A work-piece-holder for a typewriting machine having a platen, including a rectangular body-portion extending more than half-way around said platen and clasping the latter tightly, a normally ineffective workpiece-gripper integral with said bodyportion and formed in front of the latter by means of a U-shaped cut, the upwardlyextending branches of the cut being at the sides of said body-portion, and the baseportion of the out being disposed adjacent the forward end of said work-piece-holder, and means for locking said gripper in effective work-piece-holding position against the platen.

at. A work-piecel1older for a typewriting machine having a revoluble platen, including a curved body-portion arranged for tightly clasping the platen, an integral work-piece-gripper disposed adjacent the front of said platen in advance of said body-portion andbeing separated fromthe latter by a slot, work-piece gaging means on said gripper, a cam disposed on said gripper, a finger-piece pivoted on said bodyportion and having a front member arranged for engaging said cam and pressing said gripper against the platen, and a rearwardly-extending member compactly disposed parallel with the surface of said platen, said body-portion having a hole through it under said rearwardly extending member, whereby the latter may be readily engaged by the operators finger.

5. A work-holder for a typewriting machine including a resilient body-portion to embrace a platen, a wo'lr-g'ipping member movable relatively thereto, a cam-surface on the work-gripping member, and means carried by the bot y-portion to engage the cam-surface to press the work-gripping member against the platen.

6. In a typewriting machine, the combination with a platen, of a band of resilient material curved for clasping said platen closely and tightly around more than one-half its circumference, the forward end of said band being disposed at the front of said platen, a stud fixed on said band adjacent said forward end, a resilient workpiece-gripper carried by said band and positioned in front of the forward end of the latter, said memher being normally spaced a short distance from said platen, an upwardly-extending integral projection on said gripper, and a lever-member pivoted on said stud and arill!) ranged to engage said projection for pressing said workpiece-gripper against the platen.

7. In a typewriting machine, the combina tion with a rotary platen, of a work-holder having a body-portion formed from resilient sheet-material curved to embrace the platen, work-clamping means mounted therewith, said worlnclamping' means being normally spaced from the platensurface for the reception of a work-sheet, and laterally movable means to press the work-clamping means against the platensurface for holding a worksheet in position.

8. In a typewriting machine, the combi nation with a rotary platen, of a workholder having a body-portionformed from resilient sheet-material curved to embrace the platen, worleclamping means mounted therewith, said work-clamping means being normally spaced from the platen-surface for reception of a work-sheet, a cam-surface on the work-clamping means, and means carried by the body-portion to engage the camsurface and force the work-clamping means against the platen-surface.

9. In a typewriting machine, the combination with a rotary platen, of a w0rk-holder having a. body-portion formed of resilient sheet-material curved to embrace the platen for attachment thereto, work-clamping means integral therewith and movable relatively to the body-portion, a cam-surface on one of the members, and a cam-surface-engaging means on the other member, whereby to press the work-clamping means against the platen.

10. In a typewriting machine, the combination with a rotary platen, of a work holder having a body-portion formed of resilient sheet-material curved to embrace the platen for attachment thereto, work-claniping means integral therewith and movable relatively to the body-portion, a cam-surface on the work-clamping means, and a lever pivoted on the body portion, said lever engaging the cam-surface to press the workclamping means against the platen.

11. A work-piece-holder for a typewriting machine having a revoluble platen, including a body-portion clasping said platen, a resilient work-piece-gripper slidably mount:

ed on said body-portion, the, forward end of said gripper being normally disposed on said body-portion adjacent the front thereof, said gripper being normally ineffective and being slidable forwardly for gripping the workpiece against said platen, and instrumentalities on said body-portion for guiding said slidable gripper and holding it under tension for gripping work-pieces.

12. In a typewriting machine, the combination with a revoluble platen, of a workpiece-holder having a body-portion clasping said platen, the forward end of said body-portion being arranged for gaging a work-piece to printing position, a resilient work-piece gripper having an inverted T- shape and being slidable on said body-portion circumferentially of said platen, and means on said body-portion engaging the upright portion of said T-shaped gripper for guiding the latter and causing its cross-arm portion to be pressed against said platen by the resiliency of said upright portion when it is slid forward 01f said body-portion where it normally rests.

ALFRED e. F. KUROWSKI. 

